CVE-2025-71278

HIGH

8.8

Description

XenForo before 2.3.5 allows OAuth2 client applications to request unauthorized scopes. This affects any customer using OAuth2 clients on any version of XenForo 2.3 prior to 2.3.5, potentially allowing client applications to gain access beyond their intended authorization level.

Details CVE

Score CVSS v3.18.8

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurNONE

Publie4/1/2026

Derniere modification4/1/2026

Sourcenvd

Observations honeypot0

Produits affectes

xenforo:xenforo

Faiblesses (CWE)

CWE-863

References

https://www.vulncheck.com/advisories/xenforo-oauth2-unauthorized-scope-request(disclosure@vulncheck.com)

https://xenforo.com/community/threads/xenforo-2-3-5-includes-security-fix-add-ons-released.228812/(disclosure@vulncheck.com)

Correlations IOC

Aucune correlation enregistree

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